MPLS framing over LAN Switches?

[DOMJAHN DAVID]

Hi there,

in order to set up a flexible Lab environment we want to have LAN switches connecting P and PE routers:

PE_Router --- LAN_Switch --- P_Router --- LAN_Switch --- PE_Router

Question: will 3550 or 3750 switches support MPLS data, i. e. will Ethernet frames with

Ethertype 0x8847 (unicast) / 0x8848 will be forwarded by LAN switches?

Thanks a lot in advance,

David

[Reza Sharifi]

David,

The 3550 or 3750 switches do NOT support MPLS.  3750s supports up to 26 VRF Lite, but that is all.

HTH

Reza

[Yasir Ashfaque]

Yes at Layer2 Switches forward packet based on MAC addresses, so in your scenario it should work, you should also increase the MTU to minimum 1550.

[Pavol Golis · Accepted solution]

I am doing the same in my lab with added dot1q tunneling to make those switches transparent. (no need to adjust switch's VLAN config in case of trunking between routers)

[DOMJAHN DAVID]

thanks a lot - this should do the job!

Cheers,

David